Company lists · Data refreshed November 2026

Top 15 Mainframe modernization consultants based in the Netherlands

RevenueBase identified 47 company matches for mainframe modernization consultants associated with the Netherlands as of November 2026 and tracks 446 professional contacts across them, including 172 with verified work emails. Amsterdam is the largest hub.

This list covers company matches for mainframe modernization consultants associated with the Netherlands, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
47Companies
446Contacts tracked
172Verified emails
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The 15 largest mainframe modernization consultants based in the Netherlands

Ranked by team size
Top 15 of 47 company matches for mainframe modernization consultants based in the Netherlands, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchCoevorden, NetherlandsHQ recorded Nov 6, 202651-20018 contacts →

Exact match

“Asysco is a leading technology provider for Legacy Transformation and offers proven, turnkey technology solutions and expertise for delivering high quality transformation and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchRandstad, NetherlandsHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“Twizt is een Next Level Onderneming die zich richt op business consultancy rondom Technologie, Integratie, Development & Projectmanagement.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchRotterdam, NetherlandsHQ recorded Nov 6, 202611-508 contacts →

Exact match

“We help businesses become future-ready by improving their processes and modernizing their technology.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact match‘s-hertogenbosch, NetherlandsHQ recorded Nov 6, 20261-107 contacts →

Exact match

“Eidikos stands for "expert" in Greek, encapsulating our core mission.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchZevenbergen, NetherlandsHQ recorded Nov 6, 20261-106 contacts →

Exact match

“Custo is gespecialiseerd in maatwerk softwareontwikkeling, systeemintegratie, cloudmigratie, en het beheer van legacy software.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchCapelle Aan Den Ijssel, NetherlandsHQ recorded Nov 6, 202611-504 contacts →

Exact match

“Better decisions create better software.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchVoorburg, NetherlandsHQ recorded Nov 6, 20261-102 contacts →

Exact match

“Centipod helps organisations use AI to augment human judgment, providing enterprise and solution architecture consulting to support digital transformation.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchPutten, NetherlandsHQ recorded Nov 6, 2026201-5001 contacts →

Exact match

“Vanenburg is an independent software and services provider.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchDordrecht, NetherlandsHQ recorded Nov 6, 202651-2001 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchUtrecht, NetherlandsHQ recorded Nov 6, 202611-501 contacts →

Exact match

“Axon Olympus is dedicated to supporting businesses so that they can improve their competitiveness and grow in a more efficient and cost-effective way.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchGa, NetherlandsHQ recorded Nov 6, 20261-101 contacts →

Exact match

“My services No matter the size of your business, whether you’re a start-up, a small business, or a big enterprise, I am your partner to provide solutions that are flexible…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchAssen, NetherlandsHQ recorded Nov 6, 20261-101 contacts →

Exact match

“De IT wereld rondom ons heen verandert in een hoog tempo.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchTuitjenhorn, NetherlandsHQ recorded Nov 6, 20261-101 contacts →

Exact match

“BE Committed is uw partner voor IT-advies, innovatie en maatwerk software.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchAlmelo, NetherlandsHQ recorded Nov 6, 20261-101 contacts →

Exact match

“Enterprise IT the way you need it to be.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchAmerongen, NetherlandsHQ recorded Nov 6, 20261-101 contacts →

Exact match

“HN7 is a small boutique”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 15 of 47 mainframe modernization consultants based in the Netherlands

See the full list, filter by size, metro and specialty, and access 172 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Mainframe modernization consultants based in the Netherlands at a glance

As of Nov 6, 2026
38.6%Verified-email coverage
9.5Average contacts per company
1-10Median size (employees)
8.5%Largest-city concentration · Amsterdam
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
33
11-50
9
51-200
3
201-500
2

Email recency for this list is measured worldwide rather than for Netherlands, so it is reported there. Company counts and contact totals on this page are exact for Netherlands, over 47 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the Netherlands whose business descriptions match “mainframe modernization consultants” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every displayed company carries at least one verified work email. RevenueBase tracks 172 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “mainframe modernization consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many mainframe modernization consultants are there based in the Netherlands?

RevenueBase identified 47 company matches for mainframe modernization consultants associated with the Netherlands as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Asysco Legacy Transformation tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most mainframe modernization consultants?

Amsterdam leads with 4 company records, followed by The Hague (3) and Coevorden (2).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 172 professional contacts with verified work emails tracked across these 47 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.